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B&R X20PS9500

The B&R X20PS9500 is a dedicated power supply module designed exclusively for the B&R X20 Compact CPU system. It provides regulated 24 VDC power to the compact CPU and its integrated I/O, and additionally supplies power to the X2X-Link bus for daisy-chained I/O expansion. This module is an essential companion to the X20CP0291 and other compact CPUs in the X20 family, ensuring stable and reliable power delivery in machine and system automation applications. Manufactured by B&R Industrial Automation (Austria / ABB Group), it is part of the standardized X20 modular component ecosystem.

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Detailed content

Model Series

Series: X20 System — Power Supply Module

Full Model Designation: X20PS9500

Related Power Supply Modules in the X20 Series:

  • X20PS9400 — Compact CPU power supply, basic variant
  • X20PS9402 — Compact CPU power supply, alternate variant
  • X20PS9502 — Compact CPU power supply, alternate variant
  • X20PS9600 — Compact-S CPU power supply
  • X20PS9602 — Compact-S CPU power supply, alternate variant
  • X20PS2100 — Single-phase power supply, 24 VDC, 5 A
  • X20PS2110 — Single-phase power supply, 24 VDC, 10 A
  • X20PS3300 — Three-phase power supply, 24 VDC, 5 A
  • X20PS3310 — Three-phase power supply, 24 VDC, 10 A

Technical Specifications

Parameter Specification
Module Type Power Supply Module for Compact CPU
Target CPU Types X20 Compact CPU modules (e.g., X20CP0291, X20CP0201, X20CP0292)
Power Supply Input Via X2X-Link from upstream module (CPU or power supply)
Output Voltage (I/O Power) 24 VDC (nominal)
Output Voltage Tolerance ±5%
Output Current (I/O Power) Sufficient for compact CPU base + integrated I/O (typical load < 5 A)
X2X-Link Power Output 2 W (nominal output power)
X2X-Link Input Current (Max) 1 A
Integrated Fuse Yes, not replaceable, reverse polarity protected
Fuse Rating (I/O Power Line) Maximum 10 A, slow-blow
Power Consumption (Module Itself) Typically < 1 W (excluding delivered I/O power)
Operating Temperature 0°C to +55°C (horizontal); -25°C to +50°C (vertical)
Storage Temperature -40°C to +85°C
Relative Humidity (Operation) 5% to 95%, non-condensing
Protection Rating IP20 (per EN 60529)
Dimensions (W × H × D) Standard X20 module width: 25 mm +0.2 mm pitch
Weight Approximately 150 g (typical for X20 power module)
Certifications CE, UKCA, ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc, UL E115267, cULus, DNV, LR, ABS, BV, EAC, KC

Functional Features

  • X2X-Link powered — receives input power and distributes it via the X2X-Link bus to the CPU and downstream I/O modules, eliminating the need for separate power wiring to each module.
  • Integrated 24 VDC I/O power output — directly powers the compact CPU base (X20BB22 or X20BB27) and all connected I/O modules.
  • Reverse polarity protection — built-in protection against incorrect power connection.
  • Non-replaceable fuse — ensures maintenance-free operation; fuse is integral to the module design.
  • Compact form factor — single-slot X20 module, fits directly beside the CPU on the DIN rail.
  • Parallel operation supported — multiple X20PS9500 modules can operate in parallel for higher current capacity.
  • Redundant operation capable — when used with redundant CPU configurations (e.g., X20HB series), supports redundant power architecture.
  • Low power loss — high efficiency power conversion minimizes heat generation.

Structural Characteristics

  • Form Factor: Plug-in module for DIN rail mounting (EN 60715, 35 mm top-hat rail).
  • Module Width: Single-slot X20 module (25 mm pitch).
  • Connection: Plugs into the compact CPU base (X20BB22 or X20BB27) and receives power via the X2X-Link connector.
  • Housing Material: High-impact industrial-grade plastic with metal EMC shielding.
  • Cooling: Fanless design — passive heat dissipation.
  • Mounting Orientation: Horizontal or vertical installation permitted.

Working Principle

The X20PS9500 receives 24 VDC power through the X2X-Link serial bus from an upstream power source (typically the main CPU module X20CP0291 or a dedicated line power supply). The module internally regulates this input and provides a stable 24 VDC output to the compact CPU base and all I/O modules connected via the X2X-Link daisy chain. The X2X-Link bus serves dual purposes: it delivers power and simultaneously carries high-speed serial data between modules, enabling up to 32 modules (including CPU, power supply, and I/O) to be connected in a single chain. The module’s internal fuse protects against overcurrent, and the reverse polarity protection diode prevents damage from incorrect wiring. Because the module is powered via X2X-Link, there is no separate mains power cable required for each module — only a single power feed to the first module in the chain is needed.

Advantages and Highlights

  • Simplified wiring — single power cable to the first module; all downstream modules are powered via X2X-Link.
  • Reduced installation time and cost — no individual power wiring for each I/O module.
  • Compact design — fits in a single X20 slot beside the CPU.
  • Reverse polarity protection — prevents damage during installation errors.
  • X2X-Link daisy-chain topology supports up to 100 m total cable length to the farthest I/O station.
  • Supports remote I/O stations with IP67-rated modules — ideal for decentralized machine architectures.
  • Parallel and redundant operation — enables scalable and fault-tolerant power architectures.
  • Maintenance-free — non-replaceable fuse, fanless design, no battery.
  • Fully compatible with the entire X20 modular ecosystem — works with all X20 I/O, communication, and safety modules.

Applicable Industries

  • Packaging machinery
  • Printing machines
  • Plastics processing
  • Textile machinery
  • Food and beverage
  • Machine tools / CNC
  • Semiconductor equipment
  • Pharmaceutical manufacturing
  • Power generation and distribution
  • Metallurgy
  • Municipal infrastructure
  • Transportation systems
  • Oil and gas
  • Chemical processing
  • Cement production
  • Robotics and handling systems
  • Wood processing
  • Automotive manufacturing

Compatible Modules

Compatible CPU Base Compatible CPU Modules
X20BB22 X20CP0291, X20CP0201
X20BB27 X20CP0291, X20CP0201, X20CP0292

| Compatible Power Module (Upstream) | Notes |
|—|
| X20CP0291 (CPU with integrated PSU) | Primary power source for X2X-Link chain |
| X20PS9400 / X20PS9402 | Alternate compact CPU power supply |
| X20PS2100 / X20PS2110 | Single-phase line-powered supply for X20 systems |
| X20PS3300 / X20PS3310 | Three-phase line-powered supply for X20 systems |

Included Accessories

  • X20AC0SL1 — AC power supply cable/adapter for CPU base (slot left)
  • X20AC0SR1 — AC power supply cable/adapter for CPU base (slot right)

Installation Requirements

  • Mounting: DIN rail EN 60715 (35 mm top-hat rail), horizontal or vertical orientation.
  • Mounting Altitude: 0 to 2000 m above sea level, unlimited.
  • Connection: Plug directly into the compact CPU base (X20BB22 or X20BB27). X2X-Link connector links to upstream power source.
  • Wiring: X2X-Link cable connects modules in daisy-chain; maximum total chain length 100 m.
  • Power Input: Receives 24 VDC via X2X-Link from upstream module; do not connect mains voltage directly.
  • Fuse: Internal 10 A slow-blow fuse (non-replaceable) — do not bypass.
  • Grounding: Ensure proper protective earth (PE) connection for EMC compliance.

Usage Precautions

  • Do not apply mains voltage (115/230 VAC) directly to the X20PS9500 — it is powered exclusively via 24 VDC X2X-Link.
  • Do not exceed the 10 A fuse rating on the I/O power output line.
  • Maximum X2X-Link chain length is 100 m from the power source to the farthest module.
  • Do not mix X20PS9500 with incompatible base modules — use only X20BB22 or X20BB27.
  • For ATEX Zone 2 installations, follow all safety instructions in the X20 user manual (ATEX 09, certificate 0083X).
  • Ensure the upstream power module can supply sufficient current for the entire X2X-Link chain (CPU + all I/O modules).
  • Do not operate outside the specified temperature range (0°C to +55°C horizontal; -25°C to +50°C vertical).
  • The internal fuse is not user-replaceable — if blown, replace the entire module.

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